401210263 has 4 divisors (see below), whose sum is σ = 406706368. Its totient is φ = 395714160.

The previous prime is 401210231. The next prime is 401210267. The reversal of 401210263 is 362012104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401210263 - 2⁵ = 401210231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401210263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401210267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747943 + ... + 2748088.

It is an arithmetic number, because the mean of its divisors is an integer number (101676592).

Almost surely, 2^401210263 is an apocalyptic number.

401210263 is a deficient number, since it is larger than the sum of its proper divisors (5496105).

401210263 is an equidigital number, since it uses as much as digits as its factorization.

401210263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496104.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 401210263 is about 20030.2337230498. The cubic root of 401210263 is about 737.5486593577.

Adding to 401210263 its reverse (362012104), we get a palindrome (763222367).

The spelling of 401210263 in words is "four hundred one million, two hundred ten thousand, two hundred sixty-three".